Question

Find the value of $c$ if $\frac{1}{2}+2c^2=\frac{17}{2}$

Answer 1

$\frac{1}{2}+2c^2=\frac{17}{2}$

$\Rightarrow$$1+4c^2=17$

$\Rightarrow$$4c^2=16$

$\Rightarrow$$c^2=4$

$\Rightarrow$$c=\pm 2$